Process of incorporating ingredients of explosives.



UNITED STATES PATENT OFFICE.

ERNEST DU PONT, 0F WILMINGTON, DELAWARE, ASSIGNOR TO THE E. I. DU PONT DE NEMOURS POWDER COMPANY, OF WILMINGTON, DELAWARE, A CORPORATION OF NEW JERSEY.

PROCESS OF INCORPORATING INGREDIENTS OF EXPLOSIVES.

976,211. No Drawing. Application filed November 16,

To all whom it may concern:

Be it known that I, ERNESTDU Form, a citizen of the United States, residing at Wilmington, county of Newcastle, and State of Delaware, have invented a new and useful Improvement in Processes of Incorporating.

ents, for the reason that many ingredients are affected by water, some being affected to the extent of being dissolved.

I have discovered that if I use a volatile liquid hydrocarbon, such, for instance, as gasolene, kerosene or benzene, preferably gasolene, I can maintain. in a moist condition any ingredient or ingredients which are detrimentally affected by the water, such, for instance, as trinitro-anisol, or which are soluble in water, such for-instance, as barium nitrate, ammonium picrate, etc. I have found with the volatile liquid hydrocarbons these ingredients are maintained in a moist condition without being dissolved or detri-..

mentally affected. I thus am enabledto incorporate these ingredients in a moist condi tion with the consequent safety of incorporation and maintaining the incorporating surfaces of the machine free from the ingredients. With the use of such volatile liquid hydrocarbons, I have also found that the time of incorporation is much shortened, and this is'true whether the ingredients used be affected or not affected by water, or be soluble or insoluble in .Water. The hydrocarbons used being of less specific gravity, the action of the balls in the ordinary incorporating machine, is much stronger. Hence my improved process of incorporation has advantages whether the ingredients be soluible or insoluble in water, or detrimentally affected ornot by water. Afterthe incorporation, the volatile hydrocarbon may be Specification of Letters Patent.

Patented Nov 22, 1910.

1907, Serial No. 402,482. Renewed April 19, 1910. Serial No. 556,396.

driven off by heat or the excess of hydrocarbon may be separated in a centrifugal machine and the remainder driven off by heat.

As an example of my proposed process, I mix together forty (4:0)' parts nitro cellulose, twenty (20) parts tri-nitro-anisol, thirty (30) parts nitroglycerin, and ten (10) parts of charcoal. Of these ingredients the tri-nitro anisol, while perhaps not soluble in water, is detrimentally afi'ected thereby. I have also added to these ingredients barium nitrate which is soluble in water. In such case the in gredients and'percentage of ingredients may be tri-nitro-an sol 35%, nitro-cellulose 45%, barium nitrate 15%,nitroglycerin 5%. After such mixing, the ingredients are placed in the ordinary incorporating machine, a porcelain barrel, in which are porcelain balls. In

this barrel is placed sulficient gasolene to bring the mass to a liquid consistency. In

corporation is then proceeded with in the ordinary manner. When the incorporation is completed, as stated before, the excess of gasolene is separated out in a centrifugal machine, and the incorporated powder subjected to heat sufiicient to volatilize and drive off the remaining gasolene. The gasolene may, if desired, be recovered in the'or-- dinary manner.

Having now fully described my invention, what I claim and desire to protect by Letters Patent is:

1. The improvement in the method of incorporating ingredients of explosives, which consists in maintaining said ingredients, while incorporating,suspended in a volatile liquid hydrocarbon in which the ingredients are insoluble.

2. The improvement while incorporating, suspended in a volatile in the method of in-.- corporating ingredients of explosives, which consists in maintaining said ingredients,

liquid hydrocarbon in which the ingredients are insoluble, and after incorporation re .moving said hydrocarbon.

3.. The improvement in the method of incorporating ingredients of explosives, insoluble in gasolene, which consists in maintaining said ingredients, while incorporating, suspended in gasolene. 1

4. The improvement in the method of incorporating ingredients of explosives, in-

soluble in gasolene, which consists in maintaining said ingredients, while incor orating, suspended in gasolene, and, after incorporation removing said gasolene.

'5. The improvement in the method of incorporating ingredients of an ex losive, one of which is affected by water, wh1ch consists in -maintaining said ingredients, while incor hy rocarbon in. which the ingredients are insoluble.

6. The improvement in the method ofincorporating ingredients of an explosive, one

- plurality of w 1ch are affected by water,

which consists in maintaining-said ingredi- V ents, while incorporating, suspended in 'a volatile liquid hydrocarbon in. which said ingredients are insoluble,

8. The improvement-in the method of incorporating ingredients of an explosive, a plurality of w which. consists in maintaining said ingredients, .while incorporating, suspended in a volatile liquid hydrocarbon 1n which said ingredients are insoluble, and, after incorporation removing said hydrocarbon.

, (porating, suspended in. a volatile-liquid,

ich are affectedby water,

9. The improvement in the. method-of incorporating 1n redients of an explosive, insoluble in gaso ene, one of which is afl'ected by water, which consists in maintaining said ingredients, while incorporating, suspended I i ingasolene. n

10. The improvement in the method of in- 'corporating ingredients of an explosive, in-

soluble in gaso ene, one of which is affected by water, which consists in maintaining said ingredients, while incorporating, suspended in gasolene, and'after incorporation removing said gasolene. t

11'. The improvement in the method of incorporating-ingredients of an explosive, in-

soluble in gasolene,'a plurality of which are aflected by water,vwhich consists-in maintaining said ingredients, while incorporating, suspended in gasolene;

. 12. The improvement'in the method of incorporating in redients of an explosive, in-

soluble in gaso ene, a plurality of which are afi'ected" by water, which consists in maintaining said ingredients, while incorporating, suspended in gasolene, and after incorporat-ionremovin said asolene..

In testimony-o whic invention, I have hereunto. setmy'hand, atxPhiladelphi'a, on this 12th day-of November, 1907; p

I ERNEST DUIPONT,

Witnesses:

M. M.,HAM1L T0N; I I A. M. 'URIAN. 

